I paid a reasonable 377 for mine brand new, and also Even tho the negative is disconnected and there is no flow threw the positive, the positive electrons are still going crazy in that wire.
I learned electrical from my father add he it's a electrical engineer for Intel and designed the pentium processors and is lead on all the new stuff he isn't allowed to talk about, lol he has taught me everything he knows, which is a God awful amount, the surprising thing, I'm only 20yrsld